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	* start fixing up tests * fix up tests + automate with drone * fiddle with linting * messing about with drone.yml * some more fiddling * hmmm * add cache * add vendor directory * verbose * ci updates * update some little things * update sig
		
			
				
	
	
		
			192 lines
		
	
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			192 lines
		
	
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package msgpack
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import (
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	"fmt"
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	"reflect"
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	"github.com/vmihailenco/msgpack/v5/msgpcode"
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)
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func (d *Decoder) bytesLen(c byte) (int, error) {
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	if c == msgpcode.Nil {
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		return -1, nil
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	}
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	if msgpcode.IsFixedString(c) {
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		return int(c & msgpcode.FixedStrMask), nil
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	}
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	switch c {
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	case msgpcode.Str8, msgpcode.Bin8:
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		n, err := d.uint8()
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		return int(n), err
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	case msgpcode.Str16, msgpcode.Bin16:
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		n, err := d.uint16()
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		return int(n), err
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	case msgpcode.Str32, msgpcode.Bin32:
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		n, err := d.uint32()
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		return int(n), err
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	}
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	return 0, fmt.Errorf("msgpack: invalid code=%x decoding string/bytes length", c)
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}
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func (d *Decoder) DecodeString() (string, error) {
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	if intern := d.flags&useInternedStringsFlag != 0; intern || len(d.dict) > 0 {
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		return d.decodeInternedString(intern)
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	}
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	c, err := d.readCode()
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	if err != nil {
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		return "", err
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	}
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	return d.string(c)
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}
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func (d *Decoder) string(c byte) (string, error) {
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return "", err
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	}
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	return d.stringWithLen(n)
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}
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func (d *Decoder) stringWithLen(n int) (string, error) {
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	if n <= 0 {
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		return "", nil
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	}
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	b, err := d.readN(n)
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	return string(b), err
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}
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func decodeStringValue(d *Decoder, v reflect.Value) error {
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	s, err := d.DecodeString()
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	if err != nil {
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		return err
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	}
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	v.SetString(s)
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	return nil
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}
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func (d *Decoder) DecodeBytesLen() (int, error) {
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	c, err := d.readCode()
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	if err != nil {
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		return 0, err
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	}
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	return d.bytesLen(c)
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}
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func (d *Decoder) DecodeBytes() ([]byte, error) {
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	c, err := d.readCode()
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	if err != nil {
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		return nil, err
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	}
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	return d.bytes(c, nil)
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}
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func (d *Decoder) bytes(c byte, b []byte) ([]byte, error) {
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return nil, err
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	}
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	if n == -1 {
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		return nil, nil
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	}
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	return readN(d.r, b, n)
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}
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func (d *Decoder) decodeStringTemp() (string, error) {
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	if intern := d.flags&useInternedStringsFlag != 0; intern || len(d.dict) > 0 {
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		return d.decodeInternedString(intern)
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	}
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	c, err := d.readCode()
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	if err != nil {
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		return "", err
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	}
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return "", err
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	}
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	if n == -1 {
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		return "", nil
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	}
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	b, err := d.readN(n)
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	if err != nil {
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		return "", err
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	}
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	return bytesToString(b), nil
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}
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func (d *Decoder) decodeBytesPtr(ptr *[]byte) error {
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	c, err := d.readCode()
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	if err != nil {
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		return err
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	}
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	return d.bytesPtr(c, ptr)
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}
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func (d *Decoder) bytesPtr(c byte, ptr *[]byte) error {
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return err
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	}
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	if n == -1 {
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		*ptr = nil
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		return nil
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	}
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	*ptr, err = readN(d.r, *ptr, n)
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	return err
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}
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func (d *Decoder) skipBytes(c byte) error {
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return err
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	}
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	if n <= 0 {
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		return nil
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	}
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	return d.skipN(n)
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}
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func decodeBytesValue(d *Decoder, v reflect.Value) error {
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	c, err := d.readCode()
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	if err != nil {
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		return err
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	}
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	b, err := d.bytes(c, v.Bytes())
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	if err != nil {
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		return err
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	}
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	v.SetBytes(b)
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	return nil
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}
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func decodeByteArrayValue(d *Decoder, v reflect.Value) error {
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	c, err := d.readCode()
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	if err != nil {
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		return err
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	}
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	n, err := d.bytesLen(c)
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	if err != nil {
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		return err
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	}
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	if n == -1 {
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		return nil
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	}
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	if n > v.Len() {
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		return fmt.Errorf("%s len is %d, but msgpack has %d elements", v.Type(), v.Len(), n)
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	}
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	b := v.Slice(0, n).Bytes()
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	return d.readFull(b)
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}
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